Sunrooms are wonderful spaces to sit and relax, read, sip a cool drink or just enjoy your container plants and flowers. Nevertheless, in some climates, things can get a bit toasty in a sunroom in the warmer months, and it may be necessary to cool off now and then. You may only need a ceiling fan or a portable fan. Problem solved. Occasionally, you may want the air to be a little chillier. Historically, portable or window air conditioners have been relatively inexpensive and do not require ductwork. They were typically noisy and obtrusive. Over the last few years, air conditioner manufacturers have worked to overcome these negatives, so you can find models that cool effectively and aren’t as noisy. Newer window units even have a more attractive appearance than older versions, so that you don’t necessarily mind having one in your home. Shop around. For the summer, you might find just the right portable or window unit. Once you’re done with it, you can remove it from the window or park the portable in the garage. U.S. homeowners are now taking advantage of ductless mini splits. Heat pumps without ducts distribute conditioned air without ducts. Outdoor compressor/condenser and indoor air handler are connected by a conduit with refrigerator lines and wiring. Cooling/heating small spaces without extending ductwork is easier with mini splits. They’re compact, quiet, and easy to mount so they’re not intrusive.